gloss | editor configurations and command-line utilities | Command Line Interface library
kandi X-RAY | gloss Summary
kandi X-RAY | gloss Summary
Gloss is a set of enhancements to the Unix command line. It is primarily developed on macOS.
Support
Quality
Security
License
Reuse
Top functions reviewed by kandi - BETA
Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of gloss
gloss Key Features
gloss Examples and Code Snippets
Community Discussions
Trending Discussions on gloss
QUESTION
As I understand, when compiling a compilation unit, the compiler's preprocessor translates #include directives by expanding the contents of the header file1 specified between the < and > (or ") tokens into the current compilation unit.
It is also my understanding, that most compilers support the #pragma once directive guarding against multiply defined symbols as a result of multiple inclusion of the same header. The same effect can be produced by following the include guard idiom.
My question is two-fold:
- Is it legal for a compiler to completely ignore an
#includedirective if it has previously encountered a#pragma oncedirective or include guard pattern in this header? - Specifically with Microsoft' compiler is there any difference in this regard whether a header contains a
#pragma oncedirective or an include guard pattern? The documentation suggests that they are handled the same, though some user feels very strongly that I am wrong, so I am confused and want clarification.
1 I'm glossing over the fact, that headers need not necessarily be files altogether.
...ANSWER
Answered 2021-Jun-13 at 08:31It the compiled program cannot tell whether the compiler has ignored a header file or not, it is legal under the as-if rule to either ignore or not ignore it.
If ignoring a file results in a program that has observable behaviour different from a program produced by processing all files normally, or ignoring a file results in an invalid program whereas processing it normally does not, then it is not legal to ignore such file. Doing so is a compiler bug.
Compiler writers seem to be confident that ignoring a once-seen file that has proper include guards in place can have no effect on the resulting program, otherwise compilers would not be doing this optimisation. It is possible that they are all wrong though, and there is a counterexample that no one has found to date. It is also possible that non-existence of such counterexample is a theorem that no one has bothered to prove, as it seems intuitively obvious.
QUESTION
I have a large csv file 'test.csv' whose line count is:
...ANSWER
Answered 2021-Jun-05 at 13:00Run grep -vw "2021-06-04" test.csv to see the lines that are being filtered out.
QUESTION
I need to sort an xml file but when I run the transform, it strips he xsi:schemaLocation from the header. Strangely, if I change the namespace url to www.example.com it will not be removed. I'm really perplexed with this.
so an xsltproc sort.xsl test.xml will return this:
ANSWER
Answered 2021-Jun-04 at 07:19 only copies the element, not the attributes.
So you have to copy the attributes of the root-node as well. For i.e. like this:
This xslt:
QUESTION
I'm very new to DBUS and BlueZ. I've been following several guides up to the point where I'm required to create an LEAdvertisement1 interface and register it with LEAdvertisingManager1.
I've been reading the BlueZ documentation for LEAdvertisement1:
...ANSWER
Answered 2021-May-31 at 09:57To create an advertisement in BlueZ with the DBus API there are two things that need to happen. The first is that you create a DBus service with the interface org.bluez.LEAdvertisement1 and the second is to tell BlueZ where that service is with RegisterAdvertisement.
From the error message you posted in your question it looks like BlueZ cannot find the service that is at /org/bluez/example/advertisement0.
I have little experience with node-js, but having a quick browser of the documentation for node-dbus-next it looks like you need
QUESTION
I'm writing this app right now and one of its components is using the LiveChatMessages resource's list method to retrieve all the live chats in a stream. My issue is not with the functionality itself, the youtube documentation was quite clear regarding this (hats off to the youtube engineers if you're reading this).
My question instead is regarding the quota system. In my journey to figuring this out, I went to the holy grail of youtube data API quotas first aka the documentation. It led me to this page:
https://developers.google.com/youtube/v3/determine_quota_cost
Now, this has the information for all the quota for various Youtube Data API resources except for the LiveChatMessages resource. Ironically, the text at the top says:
YouTube Live Streaming API methods are, technically, part of the YouTube Data API, and calls to those methods also incur quota costs. As such, API methods for live streaming are also listed in the table.
And yet the table does not even mention anything regarding the LiveStreaming API. Now, I kind of just glossed past this and from the context of all the other methods and assumed that it only incurred one quota.
I ran my app on a mid-scale stream of around 500 viewers at the time and the quota ran out in way less time than I expected. Now, I'm not sure whether I understood the quota cost correctly or the LiveChatMessages.list method had a completely different quota system.
But my app queried the LiveChatMessages.list method every 5 seconds. Which meant that it would incur 12 quota costs every minute, 720 quotas cost every hour. And since I had a quota limit of 10,000. I assumed it would be able to handle over 13 hours of live streaming without the quota capping out. But instead, it would only be about a few hours before the quota capped over.
Anyways hopefully a youtube engineer sees this and can tell me what the quota mechanics are like for the LiveChatMessages.list method because the documentation does not really mention it.
...ANSWER
Answered 2021-May-29 at 04:55Short answer
By my calculation, the number of quota points consumed by a LiveChatMessages.list request is 5 points.
Explanation
The 5 point request cost is based on a back-calculation of the total query cost over one day of API access. A sample YouTube application looks for the latest live broadcast and retrieves all live messages from chat on a regular interval. After a day of running, visit the google cloud platform quotas section and identify the Queries per day quota of the YouTube Data API v3 service. This screenshot shows that the current usage of the daily quota is 8,180:
Now, visiting the YouTube API metrics, we can obtain a breakdown of the API calls by type:
num calls service call type 45 youtube.api.v3.V3DataLiveBroadcastService.List 1,627 youtube.api.v3.V3DataLiveChatMessageService.ListHow do 45 + 1,627 = 8,180? 5 point factor for chat message list requests:
8,180 quota points = 5x(1627 message list requests) + 1x(45 broadcast requests)
Practical limits of the Youtube API 10,000 point quota
As I pointed out in the issue tracker, this limit seems lovw. For an application that interacts with live chat by making a request each 1s:
(10,000 points) / (5 pts/request) / (1 request/s) / (60 min/hr) = 33 minutes
Consider the extreme boundary case: if a live stream runs for 24 hrs/day, how many live chat requests can the quota support?
(5 pts/request) / (10,000 points/day) * (24 hr/day) * (3600 s/hr) = 43.2 s/request
QUESTION
I am currently looking through the first page of documentation for LUA and noticed that every assignment appears as var ::= Name, however I could not find any reference to the syntax of ::= itself. The documentation goes over the structuring of an assignment but glosses over these symbols. What I want to know is if every assignment requires the :: before the actual assignment operator, and, if so, why is it structured this way and not just a plain =?
ANSWER
Answered 2021-May-24 at 00:09What you're seeing is not Lua code, but a fragment of the grammar of the Lua language, as defined in Backus-Naur Form. The ::= operator is part of BNF.
QUESTION
Hi everyone I am having an issue with code by zapier (javascript)... (I know, I know)
The issue I am having is I am bringing in my data from airtable. The data comes in as three distinct arrays. They are:
...ANSWER
Answered 2021-Apr-28 at 16:13Great question! It's worth mentioning that this is Zapier "working as expected"... for use cases that don't match yours. This behavior supports line items, a common structure in Accounting & E-Commerce. But, that doesn't help you, but you want Zapier to stop messing with your nicely structured values.
The best way to handle this is probably to stringify the whole JSON. Zapier only mangles arrays, so it'll leave a JSON string unharmed.
That would be something like this in the code:
QUESTION
import java.util.Scanner;
public class PaintCostCalculator {
public static void main( String args[] )
{
try (Scanner input = new Scanner(System.in)) {
//variable declarations
int NoOfRooms;
int RoomCounter;
int choice;
int Area = 0;
int AreaSum = 0;
int TotalLSCost;
int TotalSGCost;
int TotalMatCost;
//constants declarations
final int PaintCoverage = 16;
final int LowSheenCost = 17.6;
final int SemiGlossCost = 20;
final int MatteCost = 14.3;
//code
System.out.print("Please enter the number of rooms to be painted: ");
NoOfRooms = input.nextInt();
for(RoomCounter = 0; RoomCounter < NoOfRooms; RoomCounter ++) {
System.out.printf("\nEnter the area of room %d in m^2.: ", RoomCounter + 1);
Area = input.nextInt();
AreaSum = AreaSum + Area;
}
System.out.println("\nPlease choose one of the following paint options: \n1. Low Sheen($17.60/L)\n2. Semi Gloss($20/L)\n3. Matte($14.30/L)");
choice = input.nextInt();
switch (choice)
{
case 1:
System.out.print("You have chosen Low Sheen\n");
TotalLSCost = (AreaSum / PaintCoverage) * LowSheenCost;
System.out.printf("To paint a total area of %dm^2 with Low Sheen paint it would cost a total of %d", AreaSum, TotalLSCost);
break;
case 2:
System.out.print("You have chosen Semi Gloss\n");
TotalSGCost = (AreaSum / PaintCoverage) * SemiGlossCost;
System.out.printf("To paint a total area of %dm^2 with Semi Gloss paint it would cost a total of %d", AreaSum, TotalSGCost);
break;
case 3:
System.out.print("You have chosen Matte\n");
TotalMatCost = (AreaSum / PaintCoverage) * MatteCost;
System.out.printf("To paint a total area of %dm^2 with Matte paint it would cost a total of %d", AreaSum, TotalMatCost);
break;
}
}
}
}
ANSWER
Answered 2021-Apr-26 at 08:20final int LowSheenCost = 17.6;
QUESTION
I would like to write a Boost Spirit Qi parser that can parse arbitrary C integer literals (e.g. 1234 or 0x1234ULL) and convert them to arbitrary precision llvm::APInt values.
I imagine that to do this I need to combine separate parsers for decimal, hexadecimal etc. literals.
Taking the latter as an example, the parser would need to recognize tokens 0xNN...NS where N are hexadecimal digits and S is a valid literal suffix.
Constructing such a parser is easy but I make it "discard" prefix and suffix and return the remaining digits converted to llvm::APInt values the same way that e.g. qi::uint_ return unsigned integers?
I know there is qi::uint_parser but that class seems very limited since it seems to build up its results from integers as opposed to strings. This is a staple feature of other parser generators so I'm surprised that the documentation glosses over this.
ANSWER
Answered 2021-Apr-26 at 00:38I think that what is a staple of parser generators is indeed parsing into arbitrary types of integers.
What you are after is more: you want to parse into a type that represents arbitrary types of integers with added semantic information, based on decisions in your grammar.
These decisions cannot be baked into the parser generator, because that would tie it to a particular type of grammars.
Of course, you can do that, too. Let me walk through step by step.
1. The StapleAs you have noted, Spirit does that. Let's demonstrate the basics.
Loosely after http://www.nongnu.org/hcb/#integer-literal
QUESTION
I know there is plenty of similar questions, but I want to understand very specific aspects that are never mentioned anywhere. In both cases: managed (NET runtime in this case) and native /unmanaged (c, cpp, etc)
Taken from here:
https://adamsitnik.com/Value-Types-vs-Reference-Types
The first issue that not just wasn't glossed over but not even mentioned is how your code/runtime supposed to know what type of struct you are dealing with? If struct is just all its data packed together, then where is metadata about what type of struct it is? Okay, may be in case of managed .NET runtime and binaries it is easier, it is part of the IL, but what about native binary code? It gets stripped 100%, if you open it for text reading there is no function or struct names in you binary. How would you know runtime what the struct you receive and how to treat/ parse it if there is no struct metadata with it? The pointer just points at memory, but there is no struct' structure and members there stored. At least class can be identified by extra data it has (object header and method table).
Things get even more confusing when you receive struct data from unmanaged/native space. You NEED to have that data embedded into struct otherwise how would you know what you receive? And I can't even begin to understand* how would this work for something like classes, because they are thousandfold more complex. How do you even return class from unmanaged space?
...ANSWER
Answered 2021-Apr-19 at 07:21If struct is just all its data packed together, then where is metadata about what type of struct it is?
There isn't any. With raw value data - whether that means an individual value, or an array/vector/whatever, the consuming code is the thing that knows how to interpret it. What it is is just: bytes.
How would you know runtime what the struct you receive and how to treat/ parse it if there is no struct metadata with it?
Because it is defined in the API, either in a signature, or with human words such as "the pointer refers to the start of len elements of type Foo"
You NEED to have that data embedded into struct
No you don't; you just need to agree in advance what you are sending/receiving. This is how the vast majority of interactions between different codebases works, and has always worked. Having object metadata is the exception, not the norm.
How do you even return class from unmanaged space?
You wouldn't, if by "classes" in this context you mean managed objects.
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install gloss
Run the Python installers.
If you would like to use VSCode, download it and drag the application to your system Applications folder.
Install the code command line shortcut for VSCode: Open VSCode From the View menu select Command Palette... In the command field, type "Shell command: Install 'code' command in PATH command" (it should autocomplete after a few characters) Hit return to run the command; this will create a symlink from /usr/local/bin/code to the program inside the application bundle. You can now use the code command in the console to open files and folders.
Fix up your PATH TODO ...
Support
Reuse Trending Solutions
Find, review, and download reusable Libraries, Code Snippets, Cloud APIs from over 650 million Knowledge Items
Find more librariesStay Updated
Subscribe to our newsletter for trending solutions and developer bootcamps
Share this Page
